EP0921021A3 - Axle pivot control method and apparatus for industrial vehicle - Google Patents

Axle pivot control method and apparatus for industrial vehicle Download PDF

Info

Publication number
EP0921021A3
EP0921021A3 EP98121635A EP98121635A EP0921021A3 EP 0921021 A3 EP0921021 A3 EP 0921021A3 EP 98121635 A EP98121635 A EP 98121635A EP 98121635 A EP98121635 A EP 98121635A EP 0921021 A3 EP0921021 A3 EP 0921021A3
Authority
EP
European Patent Office
Prior art keywords
threshold value
rear axle
great
locking mechanism
control method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98121635A
Other languages
German (de)
French (fr)
Other versions
EP0921021B1 (en
EP0921021A2 (en
Inventor
Kazuo Ishikawa
Takaki Ogawa
Masakatsu Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP0921021A2 publication Critical patent/EP0921021A2/en
Publication of EP0921021A3 publication Critical patent/EP0921021A3/en
Application granted granted Critical
Publication of EP0921021B1 publication Critical patent/EP0921021B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/005—Suspension locking arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B60G2200/32—Rigid axle suspensions pivoted
    • B60G2200/322—Rigid axle suspensions pivoted with a single pivot point and a straight axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/46—Means for locking the suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/02—Trucks; Load vehicles
    • B60G2300/022—Fork lift trucks, Clark
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/10—Acceleration; Deceleration
    • B60G2400/104—Acceleration; Deceleration lateral or transversal with regard to vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/25—Stroke; Height; Displacement
    • B60G2400/252—Stroke; Height; Displacement vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/60—Load

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

An apparatus for controlling pivoting the rear axle (10) of a forklift (1). The forklift includes forks (4), which are lifted and lowered relative to a body frame (1a). A locking mechanism, which includes a hydraulic damper (13) and an electromagnetic valve (14), locks the rear axle to stabilize the body frame. A controller (20) controls the locking mechanism to lock the rear axle when the fork height is at least as great as a predetermined height threshold value and the weight of a load on the fork is at least as great as a predetermined weight threshold value. The controller (20) also controls the locking mechanism to lock the rear axle when the lateral acceleration is at least as great as a predetermined threshold value. Further, the controller changes the threshold value of the lateral acceleration in accordance with the fork height.
EP98121635A 1997-12-02 1998-11-12 Axle pivot control method and apparatus for industrial vehicle Expired - Lifetime EP0921021B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33159297 1997-12-02
JP33159297A JP3334582B2 (en) 1997-12-02 1997-12-02 Industrial vehicle body swing control device and industrial vehicle

Publications (3)

Publication Number Publication Date
EP0921021A2 EP0921021A2 (en) 1999-06-09
EP0921021A3 true EP0921021A3 (en) 2005-02-09
EP0921021B1 EP0921021B1 (en) 2007-02-07

Family

ID=18245381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121635A Expired - Lifetime EP0921021B1 (en) 1997-12-02 1998-11-12 Axle pivot control method and apparatus for industrial vehicle

Country Status (9)

Country Link
US (1) US6179304B1 (en)
EP (1) EP0921021B1 (en)
JP (1) JP3334582B2 (en)
KR (1) KR100344481B1 (en)
CN (1) CN1085972C (en)
AU (1) AU710595B2 (en)
CA (1) CA2254729C (en)
DE (1) DE69837029T2 (en)
TW (1) TW442409B (en)

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SE524289C2 (en) * 2002-07-15 2004-07-20 Stock Of Sweden Ab Vehicles and method for checking the stability against tipping of such
DE10256539B4 (en) * 2002-12-04 2006-02-16 Jungheinrich Ag Four-wheel truck with pendulum axle
DE10304658A1 (en) * 2003-02-05 2004-08-19 Bosch Rexroth Ag Industrial truck
DE10305671A1 (en) * 2003-02-12 2004-08-26 Jungheinrich Aktiengesellschaft Method of operating a truck
JP4835040B2 (en) 2005-05-20 2011-12-14 株式会社豊田自動織機 Industrial vehicle control device, industrial vehicle, and industrial vehicle control method
JP4609390B2 (en) 2005-09-30 2011-01-12 株式会社豊田自動織機 Forklift travel control device
KR100655330B1 (en) * 2005-12-23 2006-12-08 두산인프라코어 주식회사 Automatic electric forklift truck stopper in operating on slope way
US20070239312A1 (en) * 2006-04-10 2007-10-11 Andersen Scott P System and method for tracking inventory movement using a material handling device
GB2451244B (en) 2007-07-21 2011-09-28 Bamford Excavators Ltd Working machine
US7896358B2 (en) * 2007-10-25 2011-03-01 The Raymond Corporation Magneto-rheological inertial damping system for lift trucks
DE102008010733A1 (en) * 2008-02-24 2009-09-03 Viessmann Werke Gmbh & Co Kg vehicle
CN103112801B (en) * 2013-02-06 2015-03-18 浙江诺力机械股份有限公司 Device, method and system for detecting height of forklift pallet fork
US9309099B2 (en) 2014-06-20 2016-04-12 Cascade Corporation Side-shift limiter
EP3194324A1 (en) 2014-09-15 2017-07-26 Crown Equipment Corporation Lift truck with optical load sensing structure
DE102016219482A1 (en) * 2016-10-07 2018-04-12 Zf Friedrichshafen Ag Drive control unit and method for limiting a maximum speed of an industrial truck
JP6801417B2 (en) * 2016-12-08 2020-12-16 株式会社豊田自動織機 Industrial vehicle
JP6665765B2 (en) * 2016-12-08 2020-03-13 株式会社豊田自動織機 Industrial vehicles
TWI648522B (en) * 2017-11-07 2019-01-21 財團法人工業技術研究院 Forklift scale sensing system and method
IT201800010234A1 (en) * 2018-11-12 2020-05-12 Manitou Italia Srl Telehandler with control system.
US11195350B2 (en) * 2020-04-13 2021-12-07 Dana Automotive Systems Group, Llc System and method for controlling a locking differential of an axle
ZA202110395B (en) * 2020-12-30 2023-11-29 Manitou Italia Srl Telehandler with facilitated alignment adjustment
CN113072012B (en) * 2021-04-25 2022-06-07 合肥工业大学 Anti-rollover control method for counterweight type forklift

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231450A (en) * 1978-10-23 1980-11-04 White Farm Equipment Company Overload warning system
US4235308A (en) * 1979-01-11 1980-11-25 The General, Inc. Locking brake for articulated vehicle
DE3018225A1 (en) * 1980-05-13 1981-11-26 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Safety system for fork-lift truck - measures lift height and load moment to limit travel speed
JPS58167218A (en) * 1982-03-27 1983-10-03 Toyoda Autom Loom Works Ltd Axle locking means in industrial vehicle
JPS58167215A (en) * 1982-03-27 1983-10-03 Toyoda Autom Loom Works Ltd Axle locking means in industrial vehicle
JPS58167217A (en) * 1982-03-27 1983-10-03 Toyoda Autom Loom Works Ltd Axle locking means in industrial vehicle
JPS58183307A (en) * 1982-04-17 1983-10-26 Toyoda Autom Loom Works Ltd Axle securing device in industrial vehicle
EP0796749A2 (en) * 1996-03-19 1997-09-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Industrial vehicle

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US3606365A (en) * 1969-11-03 1971-09-20 Budd Co Active suspension system for a vehicle
GB1426056A (en) * 1972-04-17 1976-02-25 Lancer Boss Ltd Fork lift trucks
US3953040A (en) * 1975-03-05 1976-04-27 Caterpillar Tractor Co. Leveling and lockup system for wheel tractor suspension system
SE422608B (en) * 1977-12-06 1982-03-15 Akermans Verkstad Ab STABILIZATION DEVICE AT THE WHEEL CAGE EXCAVATOR
US4206929A (en) * 1978-03-07 1980-06-10 Bruce Albert I Blow out preventer
US4221530A (en) * 1978-06-08 1980-09-09 Williams Iv James M Force-moment compensating apparatus
DE2909667C2 (en) * 1979-03-12 1985-02-14 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Electric drive control part for steerable vehicles, in particular lift trucks
US4393959A (en) * 1980-12-10 1983-07-19 Allis-Chalmers Corporation Hydraulic stabilizer for axle on mast lift vehicle
JPS58167216A (en) * 1982-03-27 1983-10-03 Toyoda Autom Loom Works Ltd Axle locking means in industrial vehicle
JPS58211903A (en) 1982-06-02 1983-12-09 Toyoda Autom Loom Works Ltd Axle fixing means in industrial vehicle
DE3741820A1 (en) * 1987-12-10 1989-06-29 Messerschmitt Boelkow Blohm SAFETY DEVICE FOR MULTI-AXLE VEHICLES
JPH0192273U (en) * 1987-12-11 1989-06-16
US4942529A (en) * 1988-05-26 1990-07-17 The Raymond Corporation Lift truck control systems
JPH0392415A (en) * 1989-09-04 1991-04-17 Nissan Motor Co Ltd Active suspension
US5188248A (en) * 1990-04-27 1993-02-23 Gehl Company Stabilizing cylinder for a rough terrain forklift
US5388857A (en) * 1992-08-27 1995-02-14 Badger Equipment Company Operator controlled vehicle stabilizer
US5639119A (en) * 1992-12-04 1997-06-17 Trak International, Inc. Forklift stabilizing apparatus
US5630623A (en) * 1994-08-15 1997-05-20 Kelsey Hayes Vehicle roll control system
US5813697A (en) * 1994-12-05 1998-09-29 Trak International, Inc. Forklift stabilizing apparatus
JP3159057B2 (en) 1996-03-19 2001-04-23 株式会社豊田自動織機製作所 Industrial vehicle control device
JPH1019645A (en) * 1996-07-05 1998-01-23 Yazaki Corp Loaded weight display device
TW445224B (en) * 1997-03-25 2001-07-11 Toyoda Automatic Loom Works Axle controller for industrial vehicles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231450A (en) * 1978-10-23 1980-11-04 White Farm Equipment Company Overload warning system
US4235308A (en) * 1979-01-11 1980-11-25 The General, Inc. Locking brake for articulated vehicle
DE3018225A1 (en) * 1980-05-13 1981-11-26 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Safety system for fork-lift truck - measures lift height and load moment to limit travel speed
JPS58167218A (en) * 1982-03-27 1983-10-03 Toyoda Autom Loom Works Ltd Axle locking means in industrial vehicle
JPS58167215A (en) * 1982-03-27 1983-10-03 Toyoda Autom Loom Works Ltd Axle locking means in industrial vehicle
JPS58167217A (en) * 1982-03-27 1983-10-03 Toyoda Autom Loom Works Ltd Axle locking means in industrial vehicle
JPS58183307A (en) * 1982-04-17 1983-10-26 Toyoda Autom Loom Works Ltd Axle securing device in industrial vehicle
EP0796749A2 (en) * 1996-03-19 1997-09-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Industrial vehicle

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0080, no. 02 (M - 266) 7 January 1984 (1984-01-07) *
PATENT ABSTRACTS OF JAPAN vol. 0080, no. 26 (M - 273) 3 February 1984 (1984-02-03) *

Also Published As

Publication number Publication date
KR100344481B1 (en) 2002-10-25
KR19990062668A (en) 1999-07-26
CA2254729C (en) 2003-09-16
CA2254729A1 (en) 1999-06-02
TW442409B (en) 2001-06-23
JP3334582B2 (en) 2002-10-15
AU9236898A (en) 1999-06-24
DE69837029D1 (en) 2007-03-22
EP0921021B1 (en) 2007-02-07
US6179304B1 (en) 2001-01-30
CN1218745A (en) 1999-06-09
EP0921021A2 (en) 1999-06-09
AU710595B2 (en) 1999-09-23
CN1085972C (en) 2002-06-05
JPH11165519A (en) 1999-06-22
DE69837029T2 (en) 2007-11-22

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